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3 years ago

Why is it easy to calculate 5% of a number ? Give an Example

Mathematics

1 answer:

Alik [6]3 years ago

5 0

5% of 1000 is 5 * 1000 / 100 = 5000 / 100 = 50.

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Hector surveyed all the sixth graders at his school about their favorite after-school activity.The table shows the results that

sergejj [24]

Ok first add all of the results together 44+55+55+66=220 Then found out how many percent each number is of 220. 44 is 20% of 220, 55 is 25%, 55 is 25%, 66 is 30%

7 0

3 years ago

Students are voting on the color of T-shirts to wear on their field trip. There are 160 students-65 boys and 95 girls- going on

Arlecino [84]

Answer:

The representative sample contained more girls than boys.

3 0

3 years ago

The following graph represents the distance a commercial airplane travels over time, at cruising speed and an altitude of 35,000

ANEK [815]

Answer:

see the explanation

Step-by-step explanation:

The picture of the question in the attached figure

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Let

x ----> the time in hours

y ----> the distance in miles

Find the value of k

For the point (4,2268)

$k=\frac{2,268}{4}=567\ mph$

The slope represent the speed of the airplane

The linear equation is

$y=567x$

Part 1 :

The point (0,0) represents the starting point of the aircraft, when the time and distance are equal to zero. The cruising starts when time t = 0.

Part 2 :

The point (4, 2268) represents the plane after 4 hours of cruise , and shows it has traveled a distance of 2268 miles after 4 hours

3 0

3 years ago

According to the graph, how far did the object move between the second and third seconds?

Setler79 [48]

Answer:

Your answer would be B

Step-by-step explanation:

This is because in between the 2nd and 3rd seconds, there is a 2 unit space so that is how far the object moved in between these seconds,

Hope this helps you out!! Have a good day:))

7 0

3 years ago

What is a voluntary response sample?Choose the correct answer below.A.A sample in which the sample size is very large.B.A sampl

Svet_ta [14]

Answer:

B. A sample in which the subjects themselves decide whether to be included in the study.

Step-by-step explanation:

In other words a voluntary response sample is a sample made up of volunteers o people who choose to be inlcuded.

5 0

4 years ago